#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string.h>
//int main()
//{
	//struct stu
	//{
	//	char name[20];
	//	size_t age;
	//	int score;
	//	int brithday;
	//}s1, s2 = { "DUO",19,100,1230 };
	//typedef struct
	//{
	//	int brithday;
	//}bri;
	//bri s4 = { 1230 };
	//struct stu s3 = { "Zhang",18,99 };

	//typedef struct stu stu;
	//stu* p = &s1;
	//strcpy(s1.name, "JY");
	//p->age = 18;
	//(*p).brithday = 606;
	//s1.score = 99;

	//stu* arr[2] = { &s1,&s2 };
	//stu arrs[2] = { s1,s2 };
	//stu*(*arrp)[2] = arr;
	//for (int i = 0; i < 2; i++)
	//{
	//	printf("%s,%d,%d,%d\n", (*arrp)[i]->name, (*arrp)[i]->age, (*arrp)[i]->score, (*arrp)[i]->brithday);
	//}
	//struct line
	//{
	//	char name[20];
	//	struct line* next;
	//}l1,l2,l3;
	//typedef struct line line;
	//l1.next = &l2, l2.next = &l3, l3.next = NULL;
	//line* a = &l1;
	//while (a)
	//{
	//	scanf("%s", (*a).name);
	//	a = (*a).next;
	//}
	//a = &l1;
	//while (a)
	//{
	//	printf("%s ", (*a).name);
	//	a = (*a).next;
	//}
	//return 0;
//}
	int fun(int a, int b)
	{
		int ab = a + b;
		return a + b;
	}
int main()
{

	return 0;
}